Here you see rl-1, i released the connectors on the top row and the 5 srews which hold the board and it's bracket. Be ware of the 2 capacitors on the right; the SHOULD be discharged because they held approx 800 volts!

Helaas was het probleem nog steeds aanwezig na het vervangen van het relais! Dat wordt dus verder zoeken. Wel had ik alvast een berichtje op de yahoo usergroup geplaatst.
Unfortunately problem was not solved after repaclement of the relay, so i have to investigate what's wrong.
I the mean time i wrote a message on the yahoo user group.

Between the RF and IF board there's a cable connected called the TIF cable.
I released this cable and cleaned the connectors. On the RF board it's better to unscrew the counter unit to have better access to the connector. After doing this, the 830 was back in business again!
(photo rf board, connector is in the red circle)